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Pyranose Oxidase from Microorganism

Cat No.
NATE-1718
Description
Pyranose oxidase (P2O) catalyzes the oxidation of aldopyranoses at position C-2 to yield the corresponding 2-ketoaldoses. P2O is a homotetrameric protein that contains covalently bound flavin adenine dinucleotide (FAD). The in vivo substrates of P2O are thought to be D-glucose, D-galactose, and D-xylose. They are oxidized to 2-keto-D-glucose (D-arabino-hexos-2-ulose, 2-dehydro-D-glucose), 2-keto-D-galactose (D-lyxo-hexos-2-ulose, 2-dehydro-D-galactose), and 2-keto-D-xylose (D-threopentos-2-ulose, 2-dehydro-D-xylose), respectively. Pyranose oxidase has significant activity with carbohydrates such as, L-sorbose, D-glucono-1,5-lactone, and D-allose. When pyranose oxidase catalyzes the oxidation of aldopyranoses, electrons are transferred to molecular oxygen which results in the formation of hydrogen peroxide.
Abbr
PROD (Microorganism)
Source
Microorganism
Form
Yellow power, lyophilized
Enzyme Commission Number
EC 1.1.3.10
Activity
>10U/mg protein
CAS No.
37250-80-9
Molecular Weight
70kDa (SDS-PAGE)
Isoelectric point
5.95
pH Stability
4.0~11.0(50℃,30min)
Michaelis Constant
8.6 10^-3 M(1.5 anlydroglucitol)
7.12×10^-4 M (D-glucose )
Unit Definition
One unit will convert one micromole of Dglucose to 2-Dehydro-D-glucose per minute at pH 7.0 at 37℃.
Optimum pH
6
Optimum temperature
60℃
Thermal stability
<55℃ (pH 7.0, 30min)
Storage
Store at -20°C.
Inhibitors
Ag+, Hg2+
Synonyms
EC 1.1.3.10; glucose 2-oxidase; pyranose-2-oxidase; 37250-80-9; P2O
Notes
INTENDED FOR RESEARCH USE ONLY, NOT FOR USE IN HUMAN, THERAPEUTIC OR DIAGNOSTIC APPLICATIONS.
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